Articulated compound locomotive.



J. W. KENDRIGK. v ARTICULATED GOMPOUND LOOOMOTIVE.

APPLICATION FILED OUT. 23, 1908. I ,909, Patented Mar. 22, 1910.

J'. W. KENDRIOK. ARTIGULATED COMPOUND LOOOMOTIVE.

APPLICATION FILED OUT. 23, 1908.

Patented Mar. 22, 1910.

2 SHEETS-SHEET 2'.

(Frauen [1J4 Kendrick/1 i in- 15 07 695. W

'iieitrertir eer e JOHN W. KENDRICK, 0F CHIOAGt-Q, ILLINOIS.

ABTICULATED COMPOUND LOCOMOTIVE.

senor.

T 0, all whom it ay concern:

Be it known/that I, JOHN V. KENDRICK,

a citizen of the UnitedStates, residing at Chicago, Ill" ois," have invented certain Improven'ints' in Articulated Compound Locomotivesfof which the following is 21. specification. i I

My invention relates to certain improve m'euts/i'n articulated compound locomotives.

In this/type of locomotive there are two frmnesf one pivoted to the other-end the boiler is rigidly attaehedto one frame and extends over the other the object being to 'so arrange the two frzi'i'nes as to provide it long wheel base for the locomotive yet the .two frames will be so mounted that they can make 41 comparatively short turn. Inv this type of compound locomotive the high pressure cylinders arezeerried by one f nine and drive the wheels mounted on that frame. .The low pressure cylinders ere carried by theother frarne and drive the Wheels carried by that f'reme'.

One object'of the present invention is to so arrange the cylinders that they will be close together, and a further object. of the invention is to arrange a superhe'eter in such .a ,manner' that steam will pass through it either beforeor after entering. the high presprior to entering the low pressure cylinders. These objects 1 attain in mg dralyvings, in w ich Figure, 1, js/e side view of ti compound [articulated locoinotiyreillustrating my invention; Fig. 2, is. an" en'lzirgu lj'side view of -r 2 apportion of a locomotive showing pint oi the boiler in section,illustrating the superheater; Fig. 3, is a. trensverse' sect ion onlthe line 3-3, Fig.- and ihig. 4E, view showing the pipe coupling" A is therear frhmel ofthelocomotivehaving driving Wheels a. he forward frame having driving wheels these {two frames are coupled together by Pills c whi c'h pass through an ordinary teouplingth rd; one series of coupling heads being/"ou one frame and the other series. .on the other ra me.

- D is the boiler mounted 'rigidl on the rear frame and" profecting' .over' t e forward.

frame. The boi er is flexibly supported on the frame B so as to allow it to swing Withthe rear frame and independently of the forward frame; there being: provided on'seld leaving the high and the following man-' nor, reterence bem had to the accompanydetached Specification of Letters Patent.

low

. instance, and extending the nozzle m is a; p1pem. The pipe on ma y be made 1nv the itetented Mar. 22, 19th.

Application filed October 2a, 1902. s@1-i.-.1n@.i59.1so.

slides or guideuhly co-uct' with one or to the (Wei-hung portion l) is the secondary combustion chamber in which is mounted the the present instance, boiler the superheater l), in the tubes d of the being thscoutinued at this point and combustion chamber hein attached to the tube sheets 1. clearly s 10W in Fig.

2. Ut l'ier forms superheuters may be used without departing from the essential few tures of my invention.

v 1*, l are the hi 'h pressure'hylinders, one mounted on each side ofthe frumeA :it' the forward end. i

(iv, G are the low pressure cylinders, one n'iouut'ed at each side of the frame it at the rear end of said frame, so that with this an"- rungement the high and low pressure cylinders are brought very close together. In the particular case illustrated the high pressure cylinders i! receive steam from the dome /t of the boiler through the pipef', While the pressure cylinders G receive steam from the hiq'h pressure cylinders l, but this stemu travels through a. superheuter E before passing to the low pressure cylinders. in the present instance the con'ueethm is made through a pipe. 7' up through :1 passage a to. one side 6 of the superheeter and down tl'irough the side e to a passage 2' leading to a head I supported by the frame A or the boiler D, as the case me Y be, and this heed is coupled to a head G eomnmnicating with the low pressure cylinder G through a coupling pipe '21. This -CO1I} )lilt{-g pipe is so formed that it can have movement in each head to eceomn'iodute itself of one frame indwendently of the other.

The exhaust from the low pressure cyliuders passes through a head G, through it pipe 42?, connected to :1 head M secured to the underside of the boiler casing", in the present from this head to some manner as the pipe 2', so as to accommodate itself to the movement of'the boiler. i v

While form ofxsu'perheeter may be used, 1' preferably use the construction iilustrat'ecl in the dreri ings, which consists of t lower. header E haying pipes e and c for the passage of the steam to and from the to the movement can bring the. superheated steam to the proper degree as the products ofcombustion pass directly from the fir box through the tubes into the secondary combustion chamber and then pass through the other tubes to the smoke box. Moreover, by this arrangement 1 can make very short connections between the high and low pressure cylinders and the super-heater so that little loss is snstained due to the t avel of the steam through the connecting pipes.

, 'llheparticular form of combustion chamber shown consists of a shell secured to the boiler shell through an annular ring a and closed by a cover plate a. and man-hole cover a. This form of combustion chamber is fully set forth and clailiicd in an application for patent filed by Kenneth ltushton on the 30th day of July 1908, under Serial Number 446,108, and I lay no claim to this construction. Any other form of central combustion chamber in the boiler proper,

smoke box, or fire box canjbe used in this connection, and for the purposes set forth in my description.

I claim 1. The combination in a compound locomotive of the articulated type, of front and rear frames. driving wheels mounted on each frame, high pressure cylinders at the forward end of the rear frame. low pressure cylimlers at the rear end of the forward cylinders, a superheater mounted in said.

combustion chamber, a rigid connection between the high pressure. cylinders and the super-heater, and a flexible connection between the superheater and the low pressure cylinders.

2. The comlgiination in a compound locomotive of the articulated type of frontand rear frames; driving wheels mounted on each frame; high pressure cylinders at the forward end of the rear frame; low pressure cylinders at the rear end of the forward farm; a boiler mounted on the rear frame and extending over said forward frame; a super-heater connected between the high and low pressure cylinder; at head connected to the exhaust passages of the low pressure cylinders; a second head mounted on the under side of the boiler; a pipe connecting said heads; and an exhaust nozzle connected to the second head.

3. The combination in a compound locomotive of the articulated ty e, of a rear frame; a forward frame coup ed to the rear frame; high pressure cylinders at the forward end of the rear frame; low pressure cylinders at. the rear of the forward frame; a boiler mounted on the rear frame and extending over the forward frame; a secondary combustion chamber in the boiler above the rear frame; a super-heater mounted within the coml'iustion chamber; a pipe extending from the dome of the boiler to the high pressure cylinders; a pipe extending from the exhaust passage of the high pressure cylinders to the inlet end of the superheater; a pipe leading from the outlet end of the super-heater to the inlet port of the low pressure cylinders; said pipe having a flexible section to permit of movementof the boiler indiniemlently of. the forward frame; a flexible exhaust pipe leading from the exhaust passage of the low pressure cylinders; a head attached to the boiler and connected to said pipe; a nozzle in the smoke box of the boiler; with a pipe leading from said head to said nozzle.

a The combination in a compound locomotive of the articulated type, of a rear frame; a'forward frame; said frames being coupled together; high pressure cylinders at the forward end of the rear'frame; 10a pressure cylinders at the rear of thefgrward frame; a boiler mounted on the rear frame and extending over the forward frame; a super-heater in connection with the boiler; a pipe extending from the dome of the boiler to the inlet port of the high pressure cylinders; a pipe extending between the high pressure cylinders and the inlet end of the super-heater; a pipe leading from the outlet. end of the super-heater to the low pressure cylinders; said pipe having a flexible section to permit, of the movement of the boiler iiulepem'lently of the forward frame; a head connected to the boiler; a flexible exhaust pipe leading from the. exhaust assage of the low pressure cylinders to sai head;

and a nozzle in the smoke box of the boiler; with a pipe leading from said head to said nozzle.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN \V. KENDRICK.

Witnesses C. W. KRUM, F. ll. Arrnn'rowf 

